Emerson MRLDS Mrlds Gateway Setup on I/O Network, Gateway Connections, Gateway Board

bits with no parity and 2 (two) stop bits.

Register	PDU	Logical	Range
Name	Address	Address
Fault and	0x0000	1	Under Range
Module			2 (msb)
State
			Under Volt-
			age 8 (msb)
			Temperature
			10 (msb)
			Lamp Fail
			40 (msb)
			Test Mode
			80 (msb)
			Warm Up
			Complete
			0 (Lsb)
			Cal/Setup
			2 (Lsb)
			Factory
			Mode
			4 (Lsb)
			Trouble
			Mode
			8 (Lsb)
Gas	0x0001	2	0 to 40
Number
Gas Con-	0x0002	3	-20 to 1050
centration			(ppm)
Gas	R-22 = 6
Numbers	R-404A = 27
	R-134a = 15

Table 4-3- RS485 Output Specifications

4.3MRLDS Gateway

4.3.1MRLDS Gateway Setup on I/O Network

Modbus versions of the MRLDS must be connected to the 810-3040 MRLDS Gateway. The MRLDS Gateway can be mapped in either of two ways: it can be set up on I/O Net as an IRLDS application or as a 16AI board. Select by setting the Gateway’s dip switch #5 to the OFF or ON position (Figure 4-6).

SELECT I/O NET MODE

OFF = IRLDS

ON = 16AI

ON

OFF = IRLDS ON = 16AI

Figure 4-6- I/O Network Modes

4.3.2Gateway Connections

Up to 12 MRLDS units may be connected to the Gate- way board (P/N 810-3040). The Gateway board can inter- face with a site controller as a 16AI or as an IRLDS. If the site controller is an Einstein or E2, it is recommended to interface them as an IRLDS. Multiple Gateways can be used, each with up to 12 connected MRLDS units.

4.3.3The Gateway Board

Figure 4-7- MRLDS Gateway Board Layout (810-3040)

MRLDS Gateway MRLDS Modbus Version (809-101x) • 7